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8650 engine conversion?

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fdt860
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PostPosted: Thu Apr 26, 2018 8:19 am    Post subject: Re: 8650 engine conversion? Reply to specific post Reply with quote

Very Happy II just realized what I posted is a Cummins 903... Ooops
 
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SVcummins
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PostPosted: Thu Apr 26, 2018 9:01 am    Post subject: Re: 8650 engine conversion? Reply to specific post Reply with quote

A v8 Detroit has less torque than a a Briggs and Stratton and you got to have it at 2500 rpm all day
 
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7520619
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PostPosted: Thu Apr 26, 2018 9:16 am    Post subject: Re: 8650 engine conversion? Reply to specific post Reply with quote

fdt860 wrote:
(quoted from post at 09:18:32 04/26/1Cool Meade did a 7520 with Detroit.
It looked great. It was at the 1/2 century of progress.

I do not think that it would cost you a fortune. A VT903 like was an the big Massey would be also about the same cost. Many people don't like them tough.

Internet picture:


Im in love!
 
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7520619
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PostPosted: Thu Apr 26, 2018 9:17 am    Post subject: Re: 8650 engine conversion? Reply to specific post Reply with quote

Wrong! 71 series rated speed was 2100. Its power range was 1800-2100. Ive ran dozens of them
 
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buickanddeere
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PostPosted: Thu Apr 26, 2018 9:26 am    Post subject: Re: 8650 engine conversion? Reply to specific post Reply with quote


An N upgraded 71 series is fine all day at 2300rpm.
 
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DR. EVIL
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PostPosted: Thu Apr 26, 2018 11:31 am    Post subject: Re: 8650 engine conversion? Reply to specific post Reply with quote

Company I drove for had a LOT of 6V-92TTA Detroits. 307-308 hp, geared to run about 68-69 mph, get around 4- 4-1/2 mpg. The noise in an S2200 IH or TranStar II or GMC Astro 95 was deafening. After 2-3 hours you wanted to rupture your ear drums. But those little 552 cid V-6's would lug down and pull surprisingly well, they all had 9-speed Road-Rangers. 318's, 8V-71's needed 10 or better yet, 13 speeds. Company down the road a mile from us had ALL Astro 95's with 6V-92TTA's and Allison transmissions, 6 speeds, 2 man teams in them all. Painfully slow trucks I bet.

We had one truck with an 8V-92TTA, 435 hp, TranStar II, would eventually run 75 mph if you gave it a flat 4-5 miles to build up speed. Got about 3-3 1/2 mpg. That would be the engine to put in an 8650.
 
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7520619
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PostPosted: Thu Apr 26, 2018 11:40 am    Post subject: Re: 8650 engine conversion? Reply to specific post Reply with quote

I had a 8v92 silver that would move out very well. The tag setting showed 475 hp and 1450 torque but it did a lot more than that. No problem at all kickin 12.7 500 hp or N14s of the day. I love 92 series, and the noise is not an issue at all as long as you have it turboed and kerp new mufflers on it. I want to stay away from a wet sleeved engine because of the twisty frame issue. The old 71s will run just fine. My dad always had several in his fleet in the 70s. I currently own an Astro with an 8v71 that has a 20' grain box. Ive driven several over the years. Ill take a few oil leaks any day over an extremely unpredictable engine like the 50 series 619. They give 0 advance warning. One day they're great...the next day you are dead in the water. Poor engine for that heavy of a tractor
 
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buickanddeere
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PostPosted: Thu Apr 26, 2018 3:26 pm    Post subject: Re: 8650 engine conversion? Reply to specific post Reply with quote

CVPost-SVcummins wrote:
(quoted from post at 13:01:46 04/26/1Cool A v8 Detroit has less torque than a a Briggs and Stratton and you got to have it at 2500 rpm all day


If a Detroit was such a gutless piece of crap . How did they do so well in bulldozers , dirt movers , escavators, pumps, generators , marine propulsion etc .
 
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tim s
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PostPosted: Thu Apr 26, 2018 4:09 pm    Post subject: Re: 8650 engine conversion? Reply to specific post Reply with quote

Because at the time the wasn't anything better,,now there is...
 
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Scott 730
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PostPosted: Thu Apr 26, 2018 4:12 pm    Post subject: Re: 8650 engine conversion? Reply to specific post Reply with quote


 
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GreenEnvy
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PostPosted: Thu Apr 26, 2018 6:08 pm    Post subject: Re: 8650 engine conversion? Reply to specific post Reply with quote

Its kind of funny how some of the biggest tractors ever made were powered by Detroits.
 
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matthies
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PostPosted: Thu Apr 26, 2018 6:46 pm    Post subject: Re: 8650 engine conversion? Reply to specific post Reply with quote

Would the bell housing from an 8850 do any good, they had a V8 and the 60 and 70 series 4WD have the 855 Cummins. Just trying to help.
 
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fdt860
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PostPosted: Thu Apr 26, 2018 9:32 pm    Post subject: Re: 8650 engine conversion? Reply to specific post Reply with quote

What he wants to sink in the tub does not really matter as long as he likes it and he has fun doing it.
If the Detroits are cheap, easy to fix, easy to find, he loves the deafening sound, they are a good choice.
Even an old Scania V8 out of an old Case will be a great engine, and I will not see a problem if he bolts a old Air Cooled Deutz in there as well, if you want to go to the very exotic road.

The detroit is not totally crazy choice because the tractor will be usable due to availability of parts and IF the conversion is well done, this will have appeal to collectors someday.
 
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7520619
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PostPosted: Thu Apr 26, 2018 9:54 pm    Post subject: Re: 8650 engine conversion? Reply to specific post Reply with quote

CVPost-matthies wrote:
(quoted from post at 19:46:47 04/26/1Cool Would the bell housing from an 8850 do any good, they had a V8 and the 60 and 70 series 4WD have the 855 Cummins. Just trying to help.

Yes, the 955 v8 should have the same pattern. I used to own one of them long ago, and was contemplating a 903 swap eventually in it. Sold it before it blew. Those are a great tractor, badass doesnt do it justice. I never had enough implement to justify fuel usage...only had it 6 months.
 
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7520619
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PostPosted: Thu Apr 26, 2018 10:08 pm    Post subject: Re: 8650 engine conversion? Reply to specific post Reply with quote

[quote="7520619"](reply to post at 22:54:24 04/26/1Cool [/quote
If it werent for the fact that the 955 were so hard to find, and that its extremely expensive to rebuild, I would consider swapping one of those in. Turn the pump down a bit to save the drivetrain. Those engines had very good torque considering they were v8s. Its really too bad Deere didnt perfect that engine a little more. That tractor had over 11000 on it and was never touched. The guy I sold it too didnt keep the water pump maintained and eventually dumped a bunch of coolant in the crankcase. Even at 11000 hours that engine never used a drop of oil in 100 hours.]
 
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